Question

an orange - colored solid is heated in a bunsen burner flame to produce a silver - colored liquid. bubbles of a colorless gas are also observed leaving the liquid. over time, as the liquid cools a crust of the orange - colored solid forms on its surface. what type of substance was the orange - colored solid? a) mixture b) compound c) element d) solution

Explanation:

A compound is a substance made up of two or more elements chemically combined. When heated, it can decompose into different substances, which is consistent with the description of the orange - colored solid changing into a silver - colored liquid and releasing a gas. An element cannot be broken down into simpler substances by chemical means. A mixture can be separated by physical means rather than the chemical change described here. A solution is a homogeneous mixture.

Answer:

B) compound